function set_time(offset) {
    d = new Date();
    utc = d.getTime() + (d.getTimezoneOffset() * 60000);
    nd = new Date(utc + (3600000*offset));
	
    $('c_time_hour').innerHTML = nd.getHours();
    $('c_time_min').innerHTML = nd.getMinutes();
	if($('c_time_min').innerHTML < 10) $('c_time_min').innerHTML = '0'+$('c_time_min').innerHTML;

	setTimeout('set_time('+offset+');',500);
}

function $(el){
	return document.getElementById(el);
}

window.onload = function(){
	set_time($('timezone').innerHTML);
}